11053521 has 12 divisors (see below), whose sum is σ = 16268148. Its totient is φ = 7229664.

The previous prime is 11053517. The next prime is 11053529. The reversal of 11053521 is 12535011.

11053521 is a `hidden beast` number, since 110 + 535 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3101121 + 7952400 = 1761^2 + 2820^2 .

It is not a de Polignac number, because 11053521 - 2² = 11053517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11053494 and 11053503.

It is not an unprimeable number, because it can be changed into a prime (11053529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11110 + ... + 12063.

It is an arithmetic number, because the mean of its divisors is an integer number (1355679).

Almost surely, 2^11053521 is an apocalyptic number.

It is an amenable number.

11053521 is a deficient number, since it is larger than the sum of its proper divisors (5214627).

11053521 is a wasteful number, since it uses less digits than its factorization.

11053521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23232 (or 23229 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 11053521 is about 3324.6835939680. The cubic root of 11053521 is about 222.7581215131.

Adding to 11053521 its reverse (12535011), we get a palindrome (23588532).

The spelling of 11053521 in words is "eleven million, fifty-three thousand, five hundred twenty-one".